Reaction Demo - Enthalpy of Reaction

Dropdown

In the demo, what happened to the temperature? ​ ​

Select answer

Multiple Choice

Based on the temperature change, which of the following best describes this reaction?

• Endothermic

  $$-\Delta H$$

• Endothermic

  $$+\Delta H$$

• Exothermic

  $$-\Delta H$$

• Exothermic

  $$+\Delta H$$

Multiple Choice

Choose which statement accurately describes this reaction

• More energy was required to break the bonds of the reactants than was released upon forming new bonds for the products

• More energy was released upon forming new bonds for the products than was required to break the bonds of the reactants

Calculate the change in enthalpy of this reaction ΔH_rxn

Ba(OH)₂ (s) + 2NH₄Cl (s) ---> BaCl₂ (s) + 2NH₃ (g) + 10H₂O (l)

Multiple Choice

What was the ΔH_rxn for this reaction?

• -160 kJ/mol

• +160 kJ/mol

• +2,465 kJ/mol

• +240 kJ/mol

Draw

Draw what a reaction energy diagram would look like for this reaction